Lock



J. B. FREYSINGER LOCK Filed 431g. 15, 1922 use the same.

Patented Dec. 2, 1924.

I U N [T D S it P ATE NT; OFFICE, i

JOHN B. rnnvsmennor s'rmuronn, CONNECTICUT, ASSIGIFOR, To run nine TOWNEMANUFACTURING C MP Y, or STAMFORD, ,couunc'rlcu'r.

' Locx.

Application filed Augustlli, 1922. "serial no, 581,969.' g

To all whom it may concern Be it known that I, Jon}; B. 'FREYSINGER, acitizen of the United States, and a resident of Stamford, in the countyof Fairfield and; State of Connecticut, have invented certain new anduseful Improvements in" Locks? 'vided witha circularopening'? in whichavention, suchas will enable others skilled in the art to which itappertains to make and This invention relates to improvements in locksof the cylinder or pinftumbler type,

and more particularly to connections be-.

tween the key plug and the lock spindle or connecting bar, one object ofthe invention being to provide simple and efiicient means wherebysuflicient lost motion between the key plug and the spindle orconnecting bar I shall be effected to permit partial rotation of saidspindle or connecting bar.

A further object is to provide simple means whereby acomplete rotationof the key plug shall cause less than a complete rotation of thespindle.

A further object is to so construct connections between a key plug andspindle that the same will operate to cause a partial rotation of thespindle during a full rotation of the key plug and at the same timeprevent endwise displacement of the latter. I

With these and other obiects in view the invention consists in certainnovel fea ures of construction and combinations of parts as hereinafterset forth and pointed outinthe claims.

In the accompanying drawings, Figure is a view in side elevation showingmy im provements. Figure 2 is an end view. Figure 3 is a perspectiveview, partly in section. Figure 4 illustrates the shell or-extension forthe key plug, and Figure 5 represents the spindle or connecting bar.

The cylinder of a pin tumbler lock is illustrated at 1, the same havinga suitable escutcheon 2 at its outer end, and the plug 3 of the lock,which receives the key 4', extends through the cylinder,-said plug beingmade suflicient in length to project beyond the inner end of thecylinder as shown by dotted lines in Figure'l.

Upon the inner projectin end of the plug, a shell 5 is fitted'and rigidy-secured thereto by means of one or more ins, such as shown at 6. Theshell'5 is so coated on and secured to the projecting portion of theplug, that it's'forward end may abut against the/1 inner end of thecylinder and thusiconstitute. means tofprevent outward displacementofthe plug. a i l 315 The rear or inner end of the shell 5 is, pro,-

The'spi ndle I or connecting-bar. is provided at it's forward end,within the'shell 5-, withdi- .,ametrically opposite lateral win or-lugs9,

9, forming, in eflect,-a cross-Bea within the. shell and preferably :atone'side-of, the Iongitudinal axis of the spindle; A-lug 10, Preferablyout and b'BIItWfIOmthB metal of the shell 5, projectsinwa'rdly from thewall of the latter and is so disposed as to engage one or the other ofthe lugs or wings 9 of the spindle and turn the latter during the turning of the key plu It will be seen t at when the parts are in thepositions shown in Figure 3 withthe lug 10 in the shell in engagementwith one of the lugs or wings 9 of the spindle and the key plug isturned counter-clockwise, the lug 10 will travel away from the spindlelug until the plug shall have made one-halfof a rotation. The lug 10will then engage the diametrically opposite spindle lug or wing 9 and,during the remainder of a com lete rotation of'the plug, the spindlewill given a a one-half rotation to operate the bolt mechanism.

From the above, it is apparentthat the lost-motion between the key pluand the spindle is equal to one-half rotation of the construction of myinvention without departing from the spirit of the, latter or limitingits scope. and hence I do not wish to restrict myself to the precisedetails herein set forth; I 1 1 u r v Changes might be made in thedetailsof gig Havin fully described my invention whatl c' aim as new anddesire to secure by Letters-Patent, is:

1. The combination with the casing and plug of a cylinder lock, of ahollow member secured to said plug and provided with asingle inwardlyprojecting lug, a Spindle entering said hollow member and having meanswithin said member and in the path of movement of said inwardlyprojecting lug on said hollow member whereby a partial rotation of thespindle may be efiected during a complete rotation of the plug.

2. The combination with the casing and plug of a lock of a shell securedto said.

plug and engaging one end of the casing, a lug carried by. andprojecting into said shell, a spindle entering said shell, and a lateralprojection on said spindle within said shell in positiontobe engaged bythe lug in said shell, whereby a complete rota-i tion .of-the plug willeffect a partial rotation of the spindle. Y a

3. The combination with the casing and plug of a lock, of a shellsecured to said lug and en aging one end of the casing, a lug carried ysaid shell and entering the wings projecting therefrom in oppositedirections, and a lug carried by and projecting inwardly from the wallof said shell and adapted to engage one or the other wing o of thespindle, whereby a complete rotation of the plug will efiect a partialrotation of the spindle. p

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

JUHN B. Witnessw: 7

JAMES L. Ina, CHARLES A. BERRY.

' -EYSING ER.

